Variability of the composition of orcinol depsidones in Hypogymnia vittata and H. subduplicata

Zh. O. Zholobova, I. A. Prokopyev, D. A. Frolova

DOI: https://doi.org/10.31111/nsnr/2025.59.1.L43

Full article

Abstract

The variability of the composition of secondary metabolites in Hypogymnia vittata and H. subduplicata was studied. Three chemotypes have been identified for H. vittata differing in the composition of the orcinol depsidones of the medulla: I — contains vittatolic acid, 3-hydroxyphysodic and physodic acids; II — contains 3-hydroxyphysodic and physodic acids; III — contains physodic and 2′-O-methylphysodic acids. The chemotype III was shown to be associated with a specific substrate. The composition of secondary metabolites was determined for the first time for H. subduplicata. The species is represented by two chemotypes: I — contains vittatolic acid, 3-hydroxyphysodic and physodic acids; II — contains 3-hydroxyphysodic, physodic acids and lividic acid. The latter was not previously reported for the genus Hypogymnia.

Keywords: HPLC-MS/MS, lichen substances, secondary metabolites, orcinol depsidones

Section: Lichens

How to cite

Zholobova Zh. O., Prokopyev I. A., Frolova D. A. 2025. Variability of the composition of orcinol depsidones in Hypogymnia vittata and H. subduplicata. Novosti sistematiki nizshikh rastenii 59(1): L43–L48. https://doi.org/10.31111/nsnr/2025.59.1.L43

Received: 29 January 2025. Accepted: 19 March 2025. Published: 27 March 2025

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Supplementary materials

Supplementary file. Composition of secondary metabolites of studied lichen specimens, their collection sites, coordinates and substrates
NSNR_2025_59(1)_Zholobova_Supplement.pdf